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Free 3D Viewer

Free Online 3D Model Viewer

Open GLB, glTF, OBJ, FBX, STL, PLY, USDZ and 3MF files directly in your browser. Rotate, zoom, switch lighting presets, and inspect your model in original, clay, or wireframe modes — then export, render, or repair it with Text3D.ai when you’re ready.

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Why Text3D.ai

A free 3D viewer built for real 3D workflows

Most online viewers stop after opening a file. The Text3D.ai Free 3D Viewer lets you inspect a model with studio-grade controls first, then move naturally into export, AI render, preview video, mesh repair, remeshing, volume calculation, segmentation, or texture baking.

Instant browser-based preview

Open common 3D files online in seconds — no Blender, Maya, CAD suites, plugins, or desktop viewers to install. Just drag, drop, and inspect.

Studio lighting & material modes

Six lighting presets plus original, white clay, gray clay, and wireframe materials reveal topology, surface quality, and texture issues at a glance.

GLB OBJ FBX STL

8 formats, one viewer

GLB, glTF, OBJ, FBX, STL, PLY, USDZ, and 3MF all open in the same place — with format-specific export and workflow options shown automatically.

RENDER REPAIR EXPORT

From preview to production

One click takes you from inspection to AI render images, preview videos, repair, remeshing, volume calculation, segmentation, baking, or export.

Supported formats

View GLB, OBJ, FBX, STL, PLY, USDZ & 3MF online

Open every common 3D file format in one browser-based viewer. Need format-specific guidance? Each card links to a dedicated free viewer page for that format.

GLB / glTF The web standard for 3D — geometry, PBR materials, and textures embedded in a single file. Best for instant browser preview. Free GLB Viewer → OBJ A universal mesh exchange format supported by nearly every DCC and CAD tool. Pair with MTL + textures for full materials. Free OBJ Viewer → FBX The game-pipeline staple from Maya, 3ds Max, Unity, and Unreal — including rigged and animated characters. Free FBX Viewer → STL The 3D-printing standard. Check geometry, wall integrity, and printability before slicing — then repair or measure volume. Free STL Viewer → PLY Popular for 3D scans and photogrammetry, with per-vertex color support — ideal for inspecting scanned point data. Free PLY Viewer → USDZ Apple’s AR Quick Look format for iPhone and iPad. Verify AR product models before they ship to your store or app. Free USDZ Viewer → 3MF The modern 3D-manufacturing format with colors, materials, and print settings — richer than STL for production printing. Free 3MF Viewer → Need a different format? Convert between GLB, OBJ, FBX, STL, PLY, USDZ, and 3MF with the free Text3D.ai 3D Model Converter. 3D Model Converter →
How it works

How to view a 3D model online in 3 steps

Upload your model, inspect it in the browser, and continue only when you need export, render, repair, or other 3D workflows.

Upload your 3D file

Drag and drop or click to upload a GLB, glTF, OBJ, FBX, STL, PLY, USDZ, or 3MF file up to 50MB. The format is detected automatically — no dropdown required.

Inspect the model

Rotate, zoom, and reset the camera. Switch between six lighting presets and original, white clay, gray clay, or wireframe materials to verify the model is production-ready.

Continue the workflow

When ready, export to another format, or sign in to run AI render, preview video, mesh repair, remeshing, volume calculation, segmentation, or texture baking.

Who it’s for

One free 3D viewer for every workflow

Whether you’re checking a client deliverable, validating an STL before printing, or reviewing AI-generated assets, the viewer works anywhere a browser does.

Game developers & 3D artists

Open FBX, OBJ, and GLB assets without launching a DCC tool. Check wireframes, materials, and scale before importing into Unity, Unreal, Blender, or Godot.

3D printing makers

Validate STL and 3MF geometry before slicing. Spot holes, flipped normals, and thin walls, then jump straight into repair and volume calculation.

E-commerce & AR teams

Preview USDZ and GLB product models exactly as customers will see them in AR Quick Look and web 3D viewers — before they go live on your store.

AI 3D creators & reviewers

Inspect AI-generated models from Text3D.ai or any generator — verify topology and textures, then re-texture, remesh, render, or export in one workspace.

More than a file opener

Open, inspect, and keep working on your 3D model

Start by opening your 3D file online for free. Once the model is on screen, Text3D.ai puts the next steps one click away: AI render images, 3D preview videos, mesh repair, remeshing, volume calculation, texture generation, segmentation, baking, and multi-format export.

Use it as a simple file opener, or continue into a full AI 3D workspace when your project needs more than a preview. Either way, your free preview stays in your browser.

Continue after viewing

From free preview to AI 3D creation

After viewing your file, create brand-new 3D models from text, images, or multiple reference views with Text3D.ai — or convert what you already have.

Create a 3D model from text Type a prompt and generate a downloadable 3D model with the Text3D.ai V4.0 engine. Text to 3D → Create a 3D model from an image Upload a product, character, or object photo and reconstruct a textured 3D asset. Image to 3D →
Create a 3D model from multiple views Use front, side, and back references for stronger, more accurate 3D reconstruction.
Convert or export your 3D model Prepare your file for web, games, AR, 3D printing, or production tools in seconds. 3D Converter →
FAQ

Free 3D Viewer — frequently asked questions

Everything you need to know about opening, previewing, converting, and working with 3D files online.

Do I need an account to use the free 3D viewer?

No. You can upload and preview 3D files for free without login or signup. A free Text3D.ai account is only required when you choose actions in the right panel such as export, AI 3D render, preview video, repair, remeshing, texture generation, segmentation, texture baking, or volume calculation.

Which 3D file formats can I view online?

The Text3D.ai free 3D viewer supports GLB, glTF, OBJ, FBX, STL, PLY, USDZ and 3MF files up to a suggested 50MB, depending on browser compatibility and the file structure.

Are my 3D files uploaded to Text3D.ai servers?

For the free preview, your file is handled inside your browser whenever possible. Your model is only uploaded for processing when you sign in and choose a Pro workflow such as export conversion, AI render, repair, remeshing, or volume calculation.

Can I view OBJ files with materials and textures?

Yes, but OBJ materials usually require a separate MTL file and texture images, so a standalone OBJ may preview without color. For the best browser experience, GLB is usually easier because geometry, materials and textures are embedded in one file.

Can I preview STL files for 3D printing?

Yes. STL is ideal for checking 3D printing geometry, although STL files do not include textures or materials. After previewing, you can continue to mesh repair, volume calculation, remeshing, or export workflows.

Can I convert my uploaded 3D model to another format?

Yes. The Pro Export panel lists the formats available for your uploaded file — GLB, OBJ, STL, PLY, FBX, USDZ and 3MF where supported. The available options update automatically based on the source format of your file.

Can I render images or create a preview video from my uploaded model?

Yes. After previewing supported formats such as GLB, OBJ, FBX, STL or PLY, you can sign in and use Text3D.ai Pro workflows to generate studio-quality AI render images or 3D preview videos.

What is the difference between this viewer and the Text3D.ai AI generator?

The free viewer opens existing 3D files that you already have. Text3D.ai’s AI tools create brand-new 3D models from text prompts, single images, or multiple reference views, which you can then preview, export and license.

View your 3D file for free, then build more with Text3D.ai

Start with the free online 3D model viewer. Continue with AI 3D render, preview video, repair, remeshing, volume calculation, texture baking, conversion, and brand-new AI-generated 3D assets.

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